Electronics Forum | Mon Feb 23 16:36:21 EST 2004 | www.smtinfo.net
Alpha Metals sells a paste developed especially for 0201's and 0.5 mm pitch BGA's. I have no idea if if does what it promises, but it might be worth to give it a try. See http://www.alphametals.com/omnixsolder/pdfs/OM_6106.PDF
Electronics Forum | Tue Apr 13 13:22:15 EDT 2004 | babe
Try another solder paste manufacturer. Aim out of Rhode Island, Alpha and or Kester. I'm sure that they will be of better assistance than the current supplier. Good Luck
Electronics Forum | Tue Apr 13 14:56:51 EDT 2004 | russ
in a thread titled ".5mm bga" there is a reference to a paste by alpha that is no-clean and is supposed to be made specifically for this situation. I suppose that increasing the pad dimension to .012" is out of the question? Russ
Electronics Forum | Tue Apr 20 20:09:30 EDT 2004 | davef
Companies that license immersion silver technology to board fabricators are: * Alpha Level Silver * Mac Dermid Sterling [Mac Dermid's TM]
Electronics Forum | Wed May 12 08:51:37 EDT 2004 | mfroe
When you say "very old" do you mean it's discontinued? My supplier is telling me they still sell it. In this case, the residue is pooling up and clogging up a switch. That's what we are considering too much. Thanks.
Electronics Forum | Fri Jul 02 17:08:58 EDT 2004 | blnorman
We used to use Alpha paste. Every summer we had solder ball problems when the humidity rose. Time frame sounds like this is something to check in to.
Electronics Forum | Wed Jul 14 15:24:57 EDT 2004 | Jarmato
You may also want to investigate an Ionic contamination tester. You can check with Alpha, Westek or an equipment broker to find a used tester. If you switch to OA fluxes this will be an important test to perform on a regular basis.
Electronics Forum | Wed Aug 11 02:53:44 EDT 2004 | praveren_madaan@jabil.com
Hi Abraham, We are using SC10 solvent from Alpha which is ment for No clean flux residue cleaning. Thanks
Electronics Forum | Wed Dec 15 08:32:35 EST 2004 | ptavernier
Thank's Pete, I know is an old product but I would know its reflow thermal profile because I'm not sure about it. It's a linear melting or an melting with soak zone ? I haven't data on alphametals.com ...
Electronics Forum | Wed Dec 15 09:11:14 EST 2004 | ptavernier
Hi Cardinal, OK. Thank's. It's all right. What do you about SAC305 ? Do we use a linear melting too ?
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